Some notes I thought they are important, delivered to you from Hamburg

• design with ui in mind
• normalisation <-> denormalisation
• willful introduction of repetition for performance
• dont do inheritance
• put blogs where they belong
• prefetching to get attributes more instantly
• setrelationshipkeypathsforprefetching, pass nsarray with “Songs” …
• batching: only deal with whats needed
• [fetch setFetchBatchSize:10]
• Nsarray still responds to count!!!
• Array faulting those objects in to you
• partial faulting – get a slice of the data
• fetch setPropertiesToFetch[arrayWithObjects@"Title",@"xxy"]
• nsfetchedresultscontroller, set caching name to nil for searh coltroller
• sections are cached to disk
• one managed object context per thread!!!

Michael Jurewitz
jurewitz@apple.com

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